lab11

#include <bits/stdc++.h>
#include <winbgim.h>
using namespace std;
const int WID = 800, HIGH = 600, scale = 50;
const double step = 0.01;

void drawLine(int moveToX, int moveToY, int drawX, int drawY, int color, int textX, int textY, char *name) {
    moveto(moveToX, moveToY);
    setcolor(color);
    lineto(drawX, drawY);
    outtextxy(textX, textY, name);
}

int main() {
    double y1, y2;
    initwindow(WID, HIGH);
    moveto(WID / 2, HIGH / 2);
    vector<double> ab;
    bool xo;

    moveto(WID / 2 + (WID*WID * scale), HIGH / 2 - (WID*WID * scale));
    for (double x1 = -WID; x1 < WID; x1 += step) {
        y1 = 2;
        setcolor(15); // Oaao ooieoee
        lineto((WID / 2) + (x1 * scale), (HIGH / 2) - (y1 * scale));
    }
    moveto(WID / 2, HIGH / 2);
    moveto(WID / 2 + (-WID * scale), HIGH / 2 - (25-(-WID*-WID)) * scale);
    for (double x2 = -WID; x2 < WID; x2 += step) {
        y1 = 2;
        y2 = sqrt(25-x2*x2);
        setcolor(15); // Oaao ooieoee
        lineto(WID / 2 + (x2 * scale), HIGH / 2 - (y2 * scale));
        if(y1-step<y2&&y2<y1+step) ab.push_back(x2);
    }
    moveto(WID / 2, HIGH / 2);

    setcolor(15);
    outtextxy(460,30,"y=sqrt(25-x*x)");
    outtextxy(680,150,"y=2");
    cout << "a = " << ab[0] << endl;
    cout << "b = " << ab[1] << endl;
    outtextxy(WID/2 + (ab[0]*scale), HIGH/2,"a");
    outtextxy(WID/2 + (ab[1]*scale), HIGH/2,"b");

    drawLine(0, HIGH / 2 - 2, WID, HIGH / 2 - 2, 15, WID - 20, HIGH / 2 + 10, "X");
    drawLine(WID / 2, 0, WID / 2, HIGH, 15, WID / 2 + 10, 0, "Y");

    setfillstyle(1,COLOR(60, 179, 113));
   floodfill(WID / 2 + (-1 * scale), HIGH / 2 - (1 * scale), 15);
   floodfill(WID / 2 + (1 * scale), HIGH / 2 - (1 * scale), 15);

    getch();
    closegraph();
    system("PAUSE");
    return 0;

}